Hi Paul! I haven't ordered my car yet,but have done tons of research.Pretty much settled on Superformance,but waiting for the offer I can't refuse(hey, I'm a 'Dago,what can I say?)Dynamic Motorsports has had some of there clients who have installed the 427w from Coast Highperformance and love them(Reno,Nevada dealer)Yes,they do come with a 30 mo.,50k warranty included with their turnkey "Cobra Classic" engine package.They have engineered their stroker kits to overcome all the foibles of most other designs,with specially designed pistons to eliminate
oil blowby,and offset wrist pin holes to eliminate cylinder scuffing.Check out the website,at
www.coasthigh.com,or give them a call(my contact was Tim)They are extremely nice to talk to.Hope this helps!Anyway,this is where I am at this point.Maybe I'll get my car ordered at Hot August Nights next month.